Master-clock.



H. ABE.

MASTER cLocK.

APPLCATIN FILED )ULY 2951-916. 1 ,245,654, Patented Nov. 6, 1917.

2 SHEETS-'SHEET`- H. ABE.

MASTER CLOCK.

APPLICATION FILED JULY 29.1916.

Patented Nov. 6, 1917.

2 SHEETS--SHEET 2.

UNITED STATES PATENT OFFICE.

HIKOKICHI ABE, OF YAMAGATA-KEN, JAPAN, ASSIGNOR TO JUNPEI ENDOW, OF YAMAGATA-KEN, JAPAN.

Specification of Letters Patent.

MASTER-CLOCK.

Patented Nov. 6, 191 7.

Application filed July 29, 1916, Serial No. 112,174.

To all whom t may concern:

Be it known that I, HrxoxroHI ABE, a Subject of the Emperor of Japan, residing at Yamagata-Ken, Empire of Japan, have invented certain new and useful Improvements in Master-Clocks, of which the following is a specification.

This invention relates to improvements in master clocks for controlling a number of clocks electrically driven therefrom.

Heretofore, the master clocks of the type hereinafter described have been compelled to receive their power from outside electrical sources, which not only enhances the cost of installation, but also materially complicates the electrical system.

One of my objects is to provide a clock of this character which will generate the necessary electric current by means of a selfcontained generator.

The invention is best described by either of the accompanying drawings, in which- Figure 1 is a front view of my improved clock the dial plate being partially broken away to expose the interior.

Fig. 2 is a perspective view showing the internal mechanism.

Referring more particularly to the drawings, 1 and 5 indicate drums rotated by means of a weight attached to said drums by way of a cord which is wound thereon, although springs may be employed for the rotation of these drums.

2 designates an escapement mounted on a shaft 4:. An escapement wheel 3 is provided for engaging the escapement whereby an intermittent circular motion is imparted to the drum 1 by means of the interposed cog wheels. It will be understood that the second, minute and hour hands are connected to the ends of the shafts of the cog wheels in the usual manner, as disclosed in the drawings.

Positioned above the drum 5 is a shaft 6 which has affixed to one of its ends a stop lever 7. This shaft, disclosed in the drawings, is adapted to be rotated by means of a series of cogs which transmit rotary motion from the drum thereto.

As will be more clearly seen upon an examination of Fig. 2, the axle upon which the escapement wheel 3 is mounted, drives by means of a suitable cog a short shaft upon whose end is mounted an eccentric 12 adapted to rock the end of the rod 10 by means of a connecting beam 11. Connected to the opposite end of the rod 10 and at right angles to the longitudinal axis thereto is a shaft 9 depending from which is a supporting rod 8 adapted to hold the arched lever 8, the underside of whose ends are adapted to engage the ends of the stop lever 7.

Secured to the end of the shaft 6 is a lever 18 to which is connected a rod 14 whose opposite end is pivotally secured to the lever 15 ending in the armature shaft 16.

The generator comprises permanent magnets 19 and armature shaft 16, provided with a core 17 wound with wire 18, supported between the arms of the magnet.

From the above it will be seen that the operation of the device is as follows:

The drum 1 will be given an intermittent motion by reason of the escapement 2 cooperating with the escapement wheel 3v Whose shaft will operate the eccentric 12- causing a swinging of the arched lever 8 and a consequential release of the stop lever 7 which will make a half revolution due to its tendency to turn by reason of the force exerted upon it by the drum 5. Upon the release of the lever 7 and the resulting turning of the shaft 6, the lever 13 will rotate half a revolution causing a reciprocatory movement of the rod 14 and a rocking of the lever 15, which being connected with the armature shaft 16, causes this to move resulting in the generation of an induction current, which current may be conducted to the circuit outside.

Having thus described my invention, what I desire to claim is:

A master clock comprising a pair of shafts 10 termittent rotary motion theretol and suitable connecting means for connecting a genera-tor to Said second Shaft whereby upon rotation thereof, z1- eurrent is produced.

In testimony whereof I affix my signature in presence of two Witnesses.

HIKOKICHI, ABE.

Witnesses H. F. HAWLEY,

HARATADA YASUMARA.

Copies of this patent may be obtained for ve cent1 each, by addressing the Commissioner of Patents, Washington, D. C. 

